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cognitive neurology

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https://www.readbyqxmd.com/read/28922852/magnesium-sulfate-prevents-neurochemical-and-long-term-behavioral-consequences-of-neonatal-excitotoxic-lesions-comparison-between-male-and-female-mice
#1
Ismaël Daher, Bérénice Le Dieu-Lugon, Nathalie Dourmap, Matthieu Lecuyer, Lauriane Ramet, Cathy Gomila, Jérôme Ausseil, Stéphane Marret, Philippe Leroux, Vincent Roy, Salah El Mestikawy, Stéphanie Daumas, Bruno Gonzalez, Isabelle Leroux-Nicollet, Carine Cleren
Magnesium sulfate (MgSO4) administration to mothers at risk of preterm delivery is proposed as a neuroprotective strategy against neurological alterations such as cerebral palsy in newborns. However, long-term beneficial or adverse effects of MgSO4 and sex-specific sensitivity remain to be investigated. We conducted behavioral and neurochemical studies of MgSO4 effects in males and females, from the perinatal period to adolescence in a mouse model of cerebral neonatal lesion. The lesion was produced in 5-day-old (P5) pups by ibotenate intracortical injection...
October 1, 2017: Journal of Neuropathology and Experimental Neurology
https://www.readbyqxmd.com/read/28920528/the-diagnostic-accuracy-of-the-montreal-cognitive-assessment-in-inpatient-stroke-rehabilitation
#2
Abhishek Jaywant, Joan Toglia, Faith M Gunning, Michael W O'Dell
The Montreal Cognitive Assessment (MoCA) is a commonly used screening measure for cognitive impairment; however, the diagnostic accuracy and optimal cutoff points in inpatients with mild stroke severity is unknown. We examined the diagnostic accuracy of the MoCA in an acute inpatient stroke rehabilitation unit (N = 95). The criterion neuropsychological assessment was the 30-minute National Institute of Neurological Disorders and Stroke-Canadian Stroke Network battery, modified to include the Symbol-Digit Modalities Test and Trail Making Test A & B...
September 18, 2017: Neuropsychological Rehabilitation
https://www.readbyqxmd.com/read/28919465/uridine-treatment-protects-against-neonatal-brain-damage-and-long-term-cognitive-deficits-caused-by-hyperoxia
#3
Bulent Goren, Aysen Cakir, Cansu Sevinc, Sema Serter Kocoglu, Busra Ocalan, Ceren Oy, Zehra Minbay, Nevzat Kahveci, Tulin Alkan, Mehmet Cansev
Exposure to excessive oxygen in survivors of preterm birth is one of the factors that underlie the adverse neurological outcome in later life. Various pathological changes including enhanced apoptotic activity, oxidative stress and inflammation as well as decreased neuronal survival has been demonstrated in animal models of neonatal hyperoxia. The aim of the present study was to investigate the effect of administering uridine, an anti-apoptotic agent, on cellular, molecular and behavioral consequences of hyperoxia-induced brain damage in a neonatal rat model...
September 15, 2017: Brain Research
https://www.readbyqxmd.com/read/28917696/brain-mapping-in-multiple-sclerosis-lessons-learned-about-the-human-brain
#4
REVIEW
Massimo Filippi, Paolo Preziosa, Maria A Rocca
The application of structural and functional magnetic resonance imaging (MRI) techniques in patients with multiple sclerosis (MS) has certainly helped to improve our understanding of the mechanisms responsible for clinical disability and cognitive impairment in this condition. The numerous studies performed in MS patients have also provided many lessons on the structure-function relationships in the human brain, which could be applied to healthy subjects and to patients affected by other neurological conditions...
September 13, 2017: NeuroImage
https://www.readbyqxmd.com/read/28914127/psychiatric-and-neurological-symptoms-in-patients-with-niemann-pick-disease-type-c-np-c-findings-from-the-international-npc-registry
#5
Olivier Bonnot, Clarissa S Gama, Eugen Mengel, Mercè Pineda, Marie T Vanier, Louise Watson, Marie Watissée, Barbara Schwierin, Marc C Patterson
OBJECTIVES: Niemann-Pick disease type C (NP-C) is a rare inherited neurovisceral disease that should be recognized by psychiatrists as a possible underlying cause of psychiatric abnormalities. This study describes NP-C patients who had psychiatric manifestations at enrolment in the international NPC Registry, a unique multicentre, prospective, observational disease registry. METHODS: Treating physicians' data entries describing psychiatric manifestations in NPC patients were coded and grouped by expert psychiatrists...
September 15, 2017: World Journal of Biological Psychiatry
https://www.readbyqxmd.com/read/28913915/home-use-remotely-supervised-and-remotely-controlled-transcranial-direct-current-stimulation-a-systematic-review-of-the-available-evidence
#6
REVIEW
Ulrich Palm, Ulrike Kumpf, Nora Behler, Linda Wulf, Beatrice Kirsch, Jana Wörsching, Daniel Keeser, Alkomiet Hasan, Frank Padberg
OBJECTIVES: Transcranial direct current stimulation (tDCS) is gaining growing importance in the treatment of neurological and psychiatric disorders and is currently investigated for home-based and remotely supervised applications. METHODS: Here, we systematically review the available evidence from a database search (PubMed, ICTRP, clinicaltrials.gov) from January 2000 to May 2017. RESULTS: We detected 22 original research papers, trial protocols or trial registrations dealing with tDCS as an add-on intervention to cognitive or physiotherapeutic intervention...
September 15, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28913349/brain-computer-interface-for-clinical-purposes-cognitive-assessment-and-rehabilitation
#7
REVIEW
Laura Carelli, Federica Solca, Andrea Faini, Paolo Meriggi, Davide Sangalli, Pietro Cipresso, Giuseppe Riva, Nicola Ticozzi, Andrea Ciammola, Vincenzo Silani, Barbara Poletti
Alongside the best-known applications of brain-computer interface (BCI) technology for restoring communication abilities and controlling external devices, we present the state of the art of BCI use for cognitive assessment and training purposes. We first describe some preliminary attempts to develop verbal-motor free BCI-based tests for evaluating specific or multiple cognitive domains in patients with Amyotrophic Lateral Sclerosis, disorders of consciousness, and other neurological diseases. Then we present the more heterogeneous and advanced field of BCI-based cognitive training, which has its roots in the context of neurofeedback therapy and addresses patients with neurological developmental disorders (autism spectrum disorder and attention-deficit/hyperactivity disorder), stroke patients, and elderly subjects...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28912896/investigation-of-the-safety-of-focused-ultrasound-induced-blood-brain-barrier-opening-in-a-natural-canine-model-of-aging
#8
Meaghan Anne O'Reilly, Ryan Matthew Jones, Edward Barrett, Anthony Schwab, Elizabeth Head, Kullervo Hynynen
Rationale: Ultrasound-mediated opening of the Blood-Brain Barrier(BBB) has shown exciting potential for the treatment of Alzheimer's disease(AD). Studies in transgenic mouse models have shown that this approach can reduce plaque pathology and improve spatial memory. Before clinical translation can occur the safety of the method needs to be tested in a larger brain that allows lower frequencies be used to treat larger tissue volumes, simulating clinical situations. Here we investigate the safety of opening the BBB in half of the brain in a large aged animal model with naturally occurring amyloid deposits...
2017: Theranostics
https://www.readbyqxmd.com/read/28912778/neuroprotective-effects-of-annexin-a1-tripeptide-after-deep-hypothermic-circulatory-arrest-in-rats
#9
Zhiquan Zhang, Qing Ma, Bijal Shah, G Burkhard Mackensen, Donald C Lo, Joseph P Mathew, Mihai V Podgoreanu, Niccolò Terrando
Resolution agonists, including lipid mediators and peptides such as annexin A1 (ANXA1), are providing novel approaches to treat inflammatory conditions. Surgical trauma exerts a significant burden on the immune system that can affect and impair multiple organs. Perioperative cerebral injury after cardiac surgery is associated with significant adverse neurological outcomes such as delirium and postoperative cognitive dysfunction. Using a clinically relevant rat model of cardiopulmonary bypass (CPB) with deep hypothermic circulatory arrest (DHCA), we tested the pro-resolving effects of a novel bioactive ANXA1 tripeptide (ANXA1sp) on neuroinflammation and cognition...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28912704/reliability-of-eeg-measures-of-interaction-a-paradigm-shift-is-needed-to-fight-the-reproducibility-crisis
#10
Yvonne Höller, Andreas Uhl, Arne Bathke, Aljoscha Thomschewski, Kevin Butz, Raffaele Nardone, Jürgen Fell, Eugen Trinka
Measures of interaction (connectivity) of the EEG are at the forefront of current neuroscientific research. Unfortunately, test-retest reliability can be very low, depending on the measure and its estimation, the EEG-frequency of interest, the length of the signal, and the population under investigation. In addition, artifacts can hamper the continuity of the EEG signal, and in some clinical situations it is impractical to exclude artifacts. We aimed to examine factors that moderate test-retest reliability of measures of interaction...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28912414/polish-experience-with-liver-transplantation-and-post-transplant-outcomes-in-children-with-urea-cycle-disorders
#11
Edyta Szymańska, Piotr Kaliciński, Joanna Pawłowska, Sylwia Szymańska, Maciej Pronicki, Marek Stefanowicz, Joanna Teisseyre, Dorota Broniszczak, Dariusz Rokicki
BACKGROUND Liver transplantation (LT) is recommended for various metabolic diseases, including urea cycle disorders (UCDs). The aim of this study was to determine indications and outcomes of LT for UCDs in the tertiary reference Children's Hospital in Warsaw, Poland. MATERIAL AND METHODS Medical charts of children with UCD who underwent LT between 2008 and July 2016 were retrospectively reviewed. The following parameters were analyzed: symptoms at time of diagnosis, age at diagnosis, age at transplantation, graft characteristics and survival, postsurgical complications, and biochemical and laboratory results before and after transplantation...
September 15, 2017: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/28912299/the-test-your-memory-for-mild-cognitive-impairment-tym-mci
#12
Jeremy M Brown, Claire J Lansdall, Julie Wiggins, Kate E Dawson, Kristina Hunter, James B Rowe, Richard A Parker
BACKGROUND: To validate a short cognitive test: the Test Your Memory for Mild Cognitive Impairment (TYM-MCI) in the diagnosis of patients with amnestic mild cognitive impairment or mild Alzheimer's disease (aMCI/AD). METHODS: Two hundred and two patients with mild memory problems were recruited. All had 'passed' the Mini-Mental State Examination (MMSE). Patients completed the TYM-MCI, the Test Your Memory test (TYM), MMSE and revised Addenbrooke's Cognitive Examination (ACE-R), had a neurological examination, clinical diagnostics and multidisciplinary team review...
September 14, 2017: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/28912059/piracetam-inhibits-ethanol-etoh-induced-memory-deficit-by-mediating-multiple-pathways
#13
Yifan Yang, Jian Feng, Fangyuan Xu, Jianglin Wang
Excessive ethanol (EtOH) intake, especially to prenatal exposure, can significantly affect cognitive function and cause permanent learning and memory injures in children. As a result, how to protect children from EtOH neurotoxicity has gained increasing attention in recent years. Piracetam (Pir) is a nootropic drug derived from c-aminobutyric acid and can manage cognition impairments in multiple neurological disorders. Studies have shown that Pir can exert therapeutic effects on EtOH-induced memory impairments, but the underlying mechanism is still unknown...
September 11, 2017: Brain Research
https://www.readbyqxmd.com/read/28910378/neuroinflammation-myelin-and-behavior-temporal-patterns-following-mild-traumatic-brain-injury-in-mice
#14
Toufik Taib, Claire Leconte, Juliette Van Steenwinckel, Angelo H Cho, Bruno Palmier, Egle Torsello, Rene Lai Kuen, Somfieme Onyeomah, Karine Ecomard, Chiara Benedetto, Bérard Coqueran, Anne-Catherine Novak, Edwige Deou, Michel Plotkine, Pierre Gressens, Catherine Marchand-Leroux, Valérie C Besson
Traumatic brain injury (TBI) results in white matter injury (WMI) that is associated with neurological deficits. Neuroinflammation originating from microglial activation may participate in WMI and associated disorders. To date, there is little information on the time courses of these events after mild TBI. Therefore we investigated (i) neuroinflammation, (ii) WMI and (iii) behavioral disorders between 6 hours and 3 months after mild TBI. For that purpose, we used experimental mild TBI in mice induced by a controlled cortical impact...
2017: PloS One
https://www.readbyqxmd.com/read/28904568/pediatric-autoimmune-encephalitis
#15
REVIEW
Massimo Barbagallo, Giovanna Vitaliti, Piero Pavone, Catia Romano, Riccardo Lubrano, Raffaele Falsaperla
Autoimmune (antibody mediated) encephalitis (AE) is emerging as a more common cause of pediatric encephalopathy than previously thought. The autoimmune process may be triggered by an infection, vaccine, or occult neoplasm. In the latter case, onconeural autoantibodies are directed against intracellular neuronal antigens, but a recent heterogeneous group of encephalitic syndromes has been found not to have underlying tumor but is associated with autoantibodies to the neuronal surface or synaptic antigens. Neuropsychiatric symptoms are very common in autoimmune encephalopathy; as a result, affected children may be initially present to psychiatrists...
April 2017: Journal of Pediatric Neurosciences
https://www.readbyqxmd.com/read/28903059/cognitive-flexibility-in-neurological-disorders-cognitive-components-and-event-related-potentials
#16
REVIEW
Florian Lange, Caroline Seer, Bruno Kopp
Performance deficits on the Wisconsin Card Sorting Test (WCST) in patients with prefrontal cortex (PFC) lesions are traditionally interpreted as evidence for a role of the PFC in cognitive flexibility. However, WCST deficits do not occur exclusively after PFC lesions, but also in various neurological and psychiatric disorders. We propose a multi-component approach that can accommodate this pattern of omnipresent WCST deficits: the WCST is not a pure test of cognitive flexibility, but relies on the effective functioning of multiple dissociable cognitive components...
September 10, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28901887/microcytosis-is-associated-with-low-cognitive-outcomes-in-healthy-2-year-olds-in-a-high-resource-setting
#17
Elaine K McCarthy, Mairead E Kiely, Geraldine Hannon, Caroline Ahearne, Louise C Kenny, Jonathan O'B Hourihane, Alan D Irvine, Deirdre M Murray
Fe deficiency in early childhood is associated with long-term consequences for cognitive, motor and behavioural development; however explorations in healthy children from low risk, high-resource settings have been limited. We aimed to explore associations between Fe status and neurodevelopmental outcomes in low risk, healthy 2-year-olds. This study was a secondary analysis of a nested case-control subgroup from the prospective, maternal-infant Cork Babies after Screening for Pregnancy Endpoints: Evaluating the Longitudinal Impact using Neurological and Nutritional Endpoints (BASELINE) Birth Cohort Study...
September 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28899759/hippocampal-metabolism-and-prefrontal-brain-structure-a-combined-1h-mr-spectroscopy-neuropsychological-and-voxel-based-morphometry-vbm-study
#18
Johanna Steinke, Christian Gaser, Kerstin Langbein, Maren Dietzek, Alexander Gussew, Jürgen R Reichenbach, Stefan Smesny, Heinrich Sauer, Igor Nenadić
Hippocampal structural and functional integrity impacts on multiple remote areas of the brain, and this connectivity is central to multiple cognitive functions in healthy and disease. We studied associations of hippocampal metabolic markers N-acetyl aspartate (NAA) and glutamate (Glu and Glx; assessed with 1H magnetic resonance spectroscopy) and brain grey matter (studied with voxel-based morphometry, VBM) in 20 healthy subjects. We found a significant correlation between right hippocampal NAA and left ventrolateral prefrontal cortical grey matter (TFCE, p<0...
September 9, 2017: Brain Research
https://www.readbyqxmd.com/read/28899505/an-alkaloid-extract-obtained-from-phlegmariurus-saururus-induces-neuroprotection-after-status-epilepticus
#19
Víctor Danelon, Laura Montroull, Mariana Vallejo, José Cabrera, Alicia Agnese, María Gabriela Ortega, Daniel Mascó
BACKGROUND: The brain is exposed to many excitotoxic insults that can lead to neuronal damage. Among these, Epilepsy is a neurological disease that affects a large percentage of world population and is commonly associated with cognitive disorders and excitotoxic neuronal death. Most experimental strategies are focused on preventing Status Epilepticus (SE), but once it has already occurred, the key question is whether it is possible to save neurons. PURPOSE: The aim of this study was to determine if a purified alkaloid extract (AE) obtained from Phlegmariurus saururus, a genus of Lycophyte plants (sometimes known as firmossesor fir club mosses) could induce neuroprotection following SE...
October 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28895997/-elevated-incidence-of-cognitive-impairment-in-patients-with-asymptomatic-carotid-stenosis
#20
E Hernandez-Rodriguez, E Sirumal, P J Perez-Lorensu, J L Perez-Burkhardt, J Barroso, I Galtier
INTRODUCTION: Stroke is one of the main causes of mortality and functional disability in developed countries. Carotid stenosis (CS) is considered the reason for 20-30% of strokes. However, the studies that have gone into depth on the cognitive status of these patients are limited. AIM: To investigate the cognitive performance of CS patients and its relationship with clinical variables (carotid obstruction, lifestyle). PATIENTS AND METHODS: 33 CS patients were evaluated using a broad neuropsychological protocol, and were divided into two groups: symptomatic CS and asymptomatic CS...
September 16, 2017: Revista de Neurologia
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